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decrypting pst fragments

Name: Anonymous 2007-05-10 7:24 ID:p067d0Bo

// pstdec.c

#include <stdio.h>
#include <fcntl.h>
#include <io.h>

unsigned char comp_enc [] =
  { 0x47, 0xf1, 0xb4, 0xe6, 0x0b, 0x6a, 0x72, 0x48,
    0x85, 0x4e, 0x9e, 0xeb, 0xe2, 0xf8, 0x94, 0x53, /*0x0f*/
    0xe0, 0xbb, 0xa0, 0x02, 0xe8, 0x5a, 0x09, 0xab,
    0xdb, 0xe3, 0xba, 0xc6, 0x7c, 0xc3, 0x10, 0xdd, /*0x1f*/
    0x39, 0x05, 0x96, 0x30, 0xf5, 0x37, 0x60, 0x82,
    0x8c, 0xc9, 0x13, 0x4a, 0x6b, 0x1d, 0xf3, 0xfb, /*0x2f*/
    0x8f, 0x26, 0x97, 0xca, 0x91, 0x17, 0x01, 0xc4,
    0x32, 0x2d, 0x6e, 0x31, 0x95, 0xff, 0xd9, 0x23, /*0x3f*/
    0xd1, 0x00, 0x5e, 0x79, 0xdc, 0x44, 0x3b, 0x1a,
    0x28, 0xc5, 0x61, 0x57, 0x20, 0x90, 0x3d, 0x83, /*0x4f*/
    0xb9, 0x43, 0xbe, 0x67, 0xd2, 0x46, 0x42, 0x76,
    0xc0, 0x6d, 0x5b, 0x7e, 0xb2, 0x0f, 0x16, 0x29, /*0x5f*/
    0x3c, 0xa9, 0x03, 0x54, 0x0d, 0xda, 0x5d, 0xdf,
    0xf6, 0xb7, 0xc7, 0x62, 0xcd, 0x8d, 0x06, 0xd3, /*0x6f*/
    0x69, 0x5c, 0x86, 0xd6, 0x14, 0xf7, 0xa5, 0x66,
    0x75, 0xac, 0xb1, 0xe9, 0x45, 0x21, 0x70, 0x0c, /*0x7f*/
    0x87, 0x9f, 0x74, 0xa4, 0x22, 0x4c, 0x6f, 0xbf,
    0x1f, 0x56, 0xaa, 0x2e, 0xb3, 0x78, 0x33, 0x50, /*0x8f*/
    0xb0, 0xa3, 0x92, 0xbc, 0xcf, 0x19, 0x1c, 0xa7,
    0x63, 0xcb, 0x1e, 0x4d, 0x3e, 0x4b, 0x1b, 0x9b, /*0x9f*/
    0x4f, 0xe7, 0xf0, 0xee, 0xad, 0x3a, 0xb5, 0x59,
    0x04, 0xea, 0x40, 0x55, 0x25, 0x51, 0xe5, 0x7a, /*0xaf*/
    0x89, 0x38, 0x68, 0x52, 0x7b, 0xfc, 0x27, 0xae,
    0xd7, 0xbd, 0xfa, 0x07, 0xf4, 0xcc, 0x8e, 0x5f, /*0xbf*/
    0xef, 0x35, 0x9c, 0x84, 0x2b, 0x15, 0xd5, 0x77,
    0x34, 0x49, 0xb6, 0x12, 0x0a, 0x7f, 0x71, 0x88, /*0xcf*/
    0xfd, 0x9d, 0x18, 0x41, 0x7d, 0x93, 0xd8, 0x58,
    0x2c, 0xce, 0xfe, 0x24, 0xaf, 0xde, 0xb8, 0x36, /*0xdf*/
    0xc8, 0xa1, 0x80, 0xa6, 0x99, 0x98, 0xa8, 0x2f,
    0x0e, 0x81, 0x65, 0x73, 0xe4, 0xc2, 0xa2, 0x8a, /*0xef*/
    0xd4, 0xe1, 0x11, 0xd0, 0x08, 0x8b, 0x2a, 0xf2,
    0xed, 0x9a, 0x64, 0x3f, 0xc1, 0x6c, 0xf9, 0xec}; /*0xff*/

int main(int argc, char* argv[])
{
    unsigned char buffer[512];
    int bytes_read= 0;
    int i;

    _setmode(_fileno(stdin), _O_BINARY);
    _setmode(_fileno(stdout), _O_BINARY);
   
    do {
        bytes_read = fread(buffer, 1, sizeof(buffer), stdin);
        for (i=0;i<bytes_read;i++)
        {
            buffer[i] = comp_enc[buffer[i]];
        }
        fwrite(buffer, bytes_read, 1, stdout);
    } while(bytes_read > 0 || !feof(stdin));

    return 0;
}

Name: Anonymous 2007-05-10 7:58 ID:Heaven

Use read() and write() instead of fread and fwrite

Name: Anonymous 2007-05-10 7:58 ID:Heaven

>>2
and STD*_FILENO

Name: Anonymous 2007-05-10 12:45 ID:Heaven

>>2
fread() and fwrite() are defined by the c standard. read() and write() are not.
fread() and fwrite() are superior.

Name: Anonymous 2007-05-11 0:56 ID:LYLAx0an

Why is bytes_read initialized in its declaration? It's always going to be defined by fread() before anything else touches it.

I'm not understanding why the while() needs to check bytes_read. That'll just cause it to make an extra cycle through the loop when the input hits eof.

Name: Anonymous 2007-05-11 4:52 ID:rKFmUfUX

>>4
You won't be able to compile it without c library then.

Name: Anonymous 2007-05-11 5:35 ID:Heaven

>>5

I guess in case of error

Name: Anonymous 2007-05-11 8:18 ID:Heaven

>>7
True C programmers don't make errors.

Name: Anonymous 2007-05-11 10:28 ID:c4B8SPC+

>>4
FREAD AND WRITE CALL READ AND WRITE FOO

Name: Anonymous 2007-05-11 10:39 ID:EpvbcPTM

>>9
http://groups.google.com/group/comp.unix.programmer/browse_thread/thread/d5fa993d2ca41bb5/b3e863efd8289b06
On Linux, with LinuxThreads, both 'read' and 'fread' are library
functions that call a common kernel function that is neither 'read' nor
'fread'.

Name: Anonymous 2007-05-11 10:45 ID:c4B8SPC+

>>10
YOU IDIOT
I MENT
FREAD AND WRITE (as fread() and write()) CALL READ (the syscall) AND WRITE (the syscall) RESPECTIVELY
FOO

Name: Anonymous 2007-05-11 11:35 ID:Heaven

>>11
YOU IDIOT
THE SYSCALL THAT FREAD CALLS IS NOT "READ"

Name: Anonymous 2007-05-11 11:36 ID:Heaven

>>12
Fifanit lafeli.

Name: Anonymous 2007-05-11 11:51 ID:Heaven

>>13
Etaoin shrdlu.

Name: Anonymous 2009-02-14 6:33

Back to /b/, please!Back to [sub]b[/sub], please!

Name: Anonymous 2009-02-14 6:34

[sup]Back to [/sup]b[sub], please[/sub]!

Name: Anonymous 2009-02-14 6:34

Back to /b/, please!

Name: Anonymous 2009-02-14 6:35

Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!Back to /b/, please!

Name: Anonymous 2009-02-14 6:36

Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!   Back to /b/, please!

Name: Anonymous 2009-03-06 5:56

0x03 0x54 0x0d 0xda.

Name: Anonymous 2009-03-06 5:57

Someone bumped a thread I used to test my BBCODE.  Interesting.

Name: Anonymous 2009-03-06 8:36


The INTERFACE IS IN   the set of   goto programming How   did you think   YOURE THOUGH UH   I HAVE ONE   WORD FOR YOU   NET program to   do i highly   sympathize with the   hard drive SICP?

Name: Trollbot9000 2009-07-01 8:29

Etaoin.

Name: ​​​​​​​​​​ 2010-10-26 7:28

Name: Sgt.Kabu᝙妓kiman 2012-05-29 1:32

Bringing /prog/ back to its people
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All work and no play makes Jack a dull boy
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